Earthworking machine



Patenten hier. 2??,

iran .eri-iras JOSEPH S. REYNGLDS, OF CARPENTER-M, CALIFOBNA.

Application iled November 1S, 1920.

To all zii/mm 'it may concern.'

Be it known that l, deserti S, Rnvnonos,

a citizen of the United CStates, residing at Carpinteria, in the county of Santa Barbara and State of California, have invented new and useful improveniente in Earthworking Machines, of which the following is a specification.

lt is the object of this invention to provide an ea th working machine which consists of a wheeled frame having the earth working elements depending from the frame so as to engage the ground, and also having means whereby the frame may be elevated through the draft upon the vehicle in order to raise the earth engaging elements from the ground. The invention also provides means whereby the elevation of the frame may be readily controlled from the drivers seat of the tractor or the like employed for pulling the machine. The invention also provides a construction wherein the frame may be readily lowered after elevation thereof so as to cause the earth engaging elements to again enter the earth by backing up the machine.

rlhe invention will be readily understood from the following description of the accompanying drawings, in which:

Figure 1 is a longitudinal section through a machine constructed in accordance with the invention showing the earth engaging element-s in operative position.

yFig. 2 is a similar view showing the frame of the machine elevated. from the ground.

Fig. 3 is a plan view of the machine in operative position.

Figs. 1 and 5 are detail sections on'v the lines Llf--Li and 5-5 of Fig. 3.

rlhe frame of the machine is shown at 1 as substantially triangular in plan although it will be obvious that a frame of other shape may be employed. The side bars 2 of this triangular frame are connected by the rear bar 3 and support a draft mechanism between said sidefbars at their meeting ends and extending toward the rear cross bar 3. Bars 4 extend parallel to the direction of draft at either side of the draft mechanism, and are preferably connected at their front ends to side bars 2 and at their rear ends to cross bar 3.

An axle 5 is journaled in bars d adjacent the rear ends of the same, and beyond said bars the axle is provided with crank throws 6 terminating in stub axles 7 having the EARTHWRKING EIACHENE.

Serial No. 41242381'.

wheels 8 mounted thereon. The machine is supported by wheels 8 engaging the ground, and by rotating axle 5 in bars Li, the fra-me of the machine may be elevated and lowered with relation to the ground, so that the earth engaging elements carried by theA present embodiment of the invention, l have illustrated the earth engaging elements as cultivators 10 depending from side hars 2.

The draft mechanism for the machine comprises spaced guide rails 11 having the bar 12 slidable between the same. l forward end the guide rails may be connected by a cross plate 13 arranged beneath bar 12 in order to support the latter, and at its rear end Vthis bar is preferably extended above and below the guide rails as shown at 14. Pins project through the extensions of bar 12, and rollers 15 are journaled thereon so as to engage the upper and lower surfaces of the guide rails. By this arrangement the bar 12 is readily slidable lengthwise of the guide rails 11.

'The forward end of bar 12 is connected by any preferred draw bar connection 16 to suitable draft mechanism illustrated as a tractor 17. A flexible connect-ion shown as a cable 18 is secured to the rear end of bar 12 as by eye bolt 19, and the `opposite end of this cable is connected to a lever arm 2O fixed upon axle 5 as by the split clamp 21, so that as the lever is actuated, the axle will be turned for raising and lowering the frame of the machine relative to wheels 8 and to the `ground.

The forward end of bar 12 is notched asV shown at 22, and a retaining pin is mounted upon the machine frame for engagement with any one of the notches in order to hold the bar 12 in fixed relation to frame i. is an instance of this arrangement brackets 23 extend upwardly from guide rails 11 adjacent the forward ends of the same, and a retaining pin 24: adapted'to be received in any one of the notches 22 is j ournaled upon a pin 25 mounted in brackets 23. A lever arm 26 extends upwardly from the bearing for retaining pin 24 so that by pulling forwardly upon said lever arm, the retaining At their machine oit a ir.

pin may be disengaged from notc'ies 22, and a spring 26CL yieldablv holds lever S26 in position to cause eng L, pin 241'; with notches 22. A exible connec. "u 2 nreiierably extends lever ai' uto the drivers seat 28 of the tractor in order that the driver may readily disengage the ret-ainl ing' pin.

ln practice the parts are so arranged that. when rod l2 is fixed relative to traine l hy the retaining pin engaging a notch said rod., lever 2O n e swung` rearwardly, and when in such joe..- i'. he crank throws 6 are substantially paral'-, to the ground. and as a consequence the 'trame oi'l the machine is lowered with relation to the ground. llhen now it is desired to raise the machine iti .ne and thereby more the earth a consequence lever be actuated through 'tlexible connec 3 so rs to rock axle 5 and thereby raise the inachi iiraine relative to its wheels. The forward movement ot bar l2 is limited hy the engaggenient ot the head le ot said bar aga-inst pin 24, and when the parte have reached this position the continued draft upon bar l2 will move the machine forwardly with thc earth engaging elements elevated to inoperative position.

lll/hen it is desired to again lower the iframe, it is only necessary to back up the tractor i? since as soon as the draft upon bar l2 is released, the weight of trame l will reversely rock axle 5 until the parts assume their original position with retaining pin 524iagain engaging one ot the notches 22. lt will be understood that the trame of the machine may be adjusted in elevation with relation to the wlLe-,s and the ground by engaging pin in a desired one ot the notches 9,2.

Various changes may bc made without departing Atroni the spiritoif the invention as claimed.

llfhat is claimed is:

l. T ie combi' ation in an earth working "ie, earth enga@ if; elements carried thereby, an axle iourn ied in said 'trame and having crank throws, wheels carried by said crank throws., a draw bar slidable relative to said traine, lever extending from said axle, a connection between said draw bar and said lever for rocking the axle through the movement of the draw nar/sere Vfor actuating the latter against said urging means.

2. An earth working machine comprising` a traine, earth engaging elements carried by the trame, an axle journaled on the 'tra-ine and having` crank throws, wheels carried by the crank tlirov-IS, rigidly sustained thereon, a draw bar slidable in the trame, an operative connection between said draw bar and said axle to effect oscillation ot the axle upon reciirirocation of the draw bar, and means operable trom a point in advance ot the machine for releasably locking the draw ba'r relative to the trame.

3. An earth working machine comprising a iframe, guide rails secured to the frame, a draw bar slidable between the guide rails, rollers carried by the draw bar and engaging said rails, a U-shaped axle journaled in the l. An earth working machine comprising,

a traine of triangular formation, brace bars within the frame, a Ll-shaped axle ournaled on the brace bars, wheels carried by the ends oi the axle, a pair ot rails secured to and extending' rearwardly .troni the forward co1'- ner ol 1the traine, draw bar slidable between the rails, head formed on the inner end ot the draw bar, rollers journaled on the head and engaging the upper and lower edges otl said rails, said draw bar being formed at intervals with notches, an arm secured to the axle, a1 flexible connection between said arm and head, a pawl pivoted and urged to engage any one ot said notches, and a flexible member' connected to the pawl and adapted to extend forwardly 'from the machine to prevent actuation thereoia to disengage the draw bar at a point in advance oi'` the machine.

In testimony whereof l have signed my naine to this specification.

JOSEPH S. REYNOLDS. 

